All data are in degrees Fahrenheit

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Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Fukuoka now

85.3

°F

August 5, 19:07

Trend:

stable

Yesterday:

84.9°F

Tomorrow:

85.2°F

Sunrise:

05:33

Sunset:

19:16

Day Length:

13 h. 43 min.

Fukuoka in August

Minimum:

57.2°F

Average:

58.7°F

Maximum:

60.4°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 85.3°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 2.0°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 88.0°F on 2024, while the historical minimum was 80.9°F on 2015.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 84.7°F, the minimum temperature may reach 83.8°F, and the maximum might stay at 85.3°F.

Daily water temperature in Fukuoka

Date Current Year

actual* / forecast**

last year 10 years average
Jul 22 81.2°F 82.7°F 79.8°F
Jul 23 82.9°F 82.6°F 80.1°F
Jul 24 83.4°F 83.9°F 80.4°F
Jul 25 85.6°F 84.5°F 80.9°F
Jul 26 85.4°F 84.8°F 81.0°F
Jul 27 83.5°F 85.2°F 80.9°F
Jul 28 82.8°F 84.0°F 81.3°F
Jul 29 82.6°F 85.6°F 81.9°F
Jul 30 82.6°F 86.2°F 82.1°F
Jul 31 82.7°F 86.0°F 82.4°F
Aug 1 83.2°F 86.8°F 82.9°F
Aug 2 84.4°F 87.9°F 83.1°F
Aug 3 84.8°F 87.8°F 83.3°F
Aug 4 84.9°F 88.2°F 83.2°F
Aug 5 85.3°F 88.0°F 83.3°F
Aug 6 85.2°F 87.1°F 83.2°F
Aug 7 85.2°F 87.0°F 83.2°F
Aug 8 85.3°F 87.8°F 83.3°F
Aug 9 85.2°F 87.3°F 83.1°F
Aug 10 84.3°F 86.4°F 82.2°F
Aug 11 83.9°F 86.1°F 81.9°F
Aug 12 83.8°F 85.9°F 81.8°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through September offer comfortable swimming conditions, which amounts to 109 swimming days.
The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.1°F in Spring, 77.5°F in Summer, and 73.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Kitakyushu 83.2°F 30mi
Shimonoseki 82.0°F 39mi
Kumamoto 85.8°F 57mi
Nagasaki 84.0°F 66mi

* current water temperature in this city

** straight line distance from Fukuoka